Speed-regulator for gas-engines.



Tu HOLLNAGEL. SPEED REGULATOR FOR GAS ENGINES.

APPLICATION FILED NOV. 27, 1905- PATENTED FEB. 19, 1907.

No. 844,359. ,PATENTED FEB. 19, 1907.

T. HOLENAGEL. SPEED REGULATOR FOR GAS ENGINES.

APPLICATION FILED NOV. 27, 1966.

2 SHEETBBHEET 2.

THEODORE HOLLNAGEL, OF THIENSVILLE, WISCONSIN.

SPEED-REGULATOR Fon GAS-ENGINES.

Specification of Letters Patent.

Patented Feb. 19, 1907.

Application filed November 27, 1905. Serial No. 289,145.

To all whom it may concern.-

Be it known that I,THEODORE HOLLNAGEL, residing in Thiensville, in the county of Ozaukee and State ofWisconsin, have in- 5 vented new and useful Improvements in Speed-Regulators for Gas-Engines, of which the following is a description, reference being had to the accompanying drawings, which are a partof this specification.v

In gas-engines -it is commoTF'to provide a revolving governor and means therewithvfor regulating the speed of the engine by devices adapted under excessive speed of the engine to hold open the exhaust-valve of the explosion-cylinder for an unusual time, and

inder or charging it with gas during such unusual time, and thus by the failure to supply the cylinder with the explosive agent to al low or cause it to slow down or reduce the speed of the engine.- Within certain limits these devices act automatically; but if it is desired that the engine shall run at a greater speed than it is running at the regulating devices must be readjusted therefor. this, the engine, having only such regulating devices as are generally in use, must be stopped, and the devices may then be adjusted, usually by setting up the nuts on bolts that control the tension of some parts of the speed-regulator, usually the bolts that anchor the springs that yieldingly control the lever-actuating movements of centrifugally-actuated weights.

My invention relates to an improved device of a kind by which the adjustment of the I regulating devices can be accomplished readily and quickly while the engine is run ning, thereby obviating the necessity for scribe its use in connection with an upright engine, though not intending thereby to limit its use to engines. of this form.

The invention consists of the device, its parts and combinations, as herein described and claimed, or the equivalents thereof.

In the drawingsfFigure 1 is an elevation of an upright gas-engine with myimproveddevice therewith, parts of the engine being broken away to exhibit interior construction. Fig. 2 is adetail ofmy improved-device and thereby to prevent the drawing in to the cylstopping the engine and taking time to make of immediately-related parts of devices commonly used on such engines for controlling the exhaust-valve, and hig..3 is a side view of my improved device.

That the application and operation of my improved .device may be clearly understood it will be necessary briefly to describe the features and operation of a gas-engineas heretofore in use to which my improvement may be readily and successfully applied.

In the drawings, A is the pedestal, and 2 is the upright cylinder, of a gas-engine. 3 is the exhaust-valve arranged to close. the exhaust-duct leadiiig from the cylinder, and 4 is the spring-held check-valve for the gassupply duct leading into the cylinder. The exhaust-valve 3 is. closed yieldingly by the s ring 5, coiled about its stem and liftin thereon. The stem of the valve is oonnecte to the medially pivoted lever 6, the other arm of which lever is connected by a rod 7 to the free end of a pivoted and swin ing arm 8. This arnTB is ada ted to be ifted intermittently against t e action of thespring 5 by a cam 9, engaging loose wheel 34 on pin 35 in furcatev arm 8 and fixed on a'shaft 10, on which shaft there is a toothed wheel 11, that meshes with a pinion 12 on the shaft 13, on which shaft also there is a fly-wheel l4 and a 8 5 pulley 15.,

It will be understood that the mechanism thus far described is adapted when the engine is in operation to open and close the exhaustvalve 3 regularly intermittently. As the eninc is liable to acquire too reat a speed when left without any control, t ere has been provided a means'for catching the arm 8 at the upper limit of its travel and holding it I there, thus holding the valve 3 open during 5 one or more revolutions of the cam 9, thus preventing the drawing of the explosive agent into the cylinder, and thereby delaying the'succeeding explosion. Such means has been made to and may properly consist of a tiltable arm 16, pivoted onthe pedestal or some stationary part of the engine and adapted to be swung under a catch 17 on the arm 8 when at its limit of upward travel to thereby hold the exhaust-valve? -open fora 1o 5 brief unusual period, as hereinbefore described. The catch 17 may conveniently be formed in or consist of the end of the pin '35, projecting from the arm 8. This tilting arm 16 is held normally yieldingly-out of no contact with and out of the path of the catch 17 by a suitable spring, (not shown in the drawings";) but for the purpose of automatl A standard 25 is pivoted to the frame 22 and ically putting this tilting arm into the path at its free end is advisably provided with a of the catch 17 there are mounted eccentric- I thumb-piece 26. A dog 27 is pivoted on the ally on the wheel 11 a plurality of pivoted s ndard 25 adjacent to the toothed edge of 5 lever-arms 18, the outer ends of which arms I th frame 24, which dog is provided with a. 70 a are provided with Weights 19 and the inner pointed. extremity or tooth adapted to enends of which arms enter sockets therefor in gage the teeth 24. A spring 28, attached to a sleeve 20, splined and movable endwise on the dog and to the frame,'is adapted to hold the shaft 10. The weights 19 are connected the'dog yieldingly in engagement with the to to each other yieldingly by springs 21, the teeth. The dog is. provided with a finger- 7 1 action of these springs being to hold the piece 29, complementary to the thumb-piece wei hts yieldingly toward the axis of the 26. A-rod30, pivoted at its outer end in'the' shaft 10 and also to hold the sleeve yieldtilting arm 16, asses .movably through a ingly toward the wheel 11. The arrangeflange-31, formed on the inner end-of the dog I [5 ment of parts is such that whenthe sleeve 20 27. An expansion-spring 32, coiled about 8:

20 against the .action of its holding-spring will tion of the'spring 21, and thereby withdrawis moved in the other directionthatis, away the rod and bearing at its inner end from the Wheel 11-by the centrifugal action against'a collar 33 on the rod 30 and at its of the weights 19 the inner end of the sleeve outer end against the flange 31 or end, of the 'will contact with the tilting arm .16 and do 27, is adapted to push the arm 16 yieldingily away from the dog or hold it yieldingly 85 push it into the path of the catch 17 where up to its Work. Y it will remain until the lessening of the cen- It should be understood that this device is trifugal action on the weights shall permit so adjusted that whenv the dog 27 takes into. their coming toward the center under the acthe outer tooth of the teeth or rack 2 4 it, per,-

'mits of the normal operation of'the englne- 9o governor, andit'will be seen that then by setting up the dog on the toothed rack 24 the lever-arm 16 will be pushed away from the ing the sleeve 20, permitting the arm'16 to betilted by its spring out of the path of the catch 17. By this means the so-called ""hit-andmi's s'movement or governor action, may be path of the catch 17. on the arm 8 with 30 controlled.

40 thus adjust. these regulating devices or the 4 ine therefor.

i greater force and to a greater extent than 9 5 While the mechanlsm heretofore descrlbed when the dog was not so set up, the result of is adapted to control" the speed of the engine which is that the engine must, acquire greater within the limits for which the devices are speed under such adjustment before the exadjusted to operate, it is often desirable to haust-valve-3 willbe held open by the tilting 3 5 readjust this regulating device or governor, warm 1.6, thus establishingareadjustmentiof 10o so as to permit the engine to run at a higher the governor, adapting it to permit of a rate of speed, within which such higher rate high r rat of, ed f the. gi all f of speed the thus-described overnor will whi h is ac om lished readily and uickly control 1ts movements; but eretofore' to and without any occasion for stopping the governor it has been necessary to stop the What I claim as my invention is.-

engine to do the work of readjusting the 1. In combination with a hit-and-miss device Q mechanism on a gas-engine, a governor-ad;- My improved device is adapted t mjusting device, consisting of a non-movable plish the readjustment of the regulating derack, a tiltable standard, a dog mountedand- I 10 v ce readiiyand quickly n Witho P- movable on tv estandard, means holding the pmg the engine. dog to releasableenga ement with the rack, My lmproved devi as ppll t0 he la rod mounted movab y endwise in the dog gine 'llustrated consists of means adapted to and ada ted to be connected to the hit-and- 5 0 hol h t i g arm 16 O offihe P Of h miss mechanism, and a spring adaptedto ex 1 r 5 catch17-aga1nst a stronger ormuch stronger tend the rod in a direction away from the action of the centrifugal Weights 19, thus d j I i v preventing the holding open 0 the exhaust- 2. An adjusting device for a governor of a valve 3 andcontlnuing the supply of explogas-engine, comprising a non-movable rack,

iv g n t the y n While e engine is' a thereto-pivoted standard, a dog pivoted on 1 20 running at such a hi h rate. of speed as the standard and adapted to engage the rack, f otherwise would-not e permitted by the a rod mounted and extensible on the dog, governor; and a spring adapted to extend the rod on Myimproved devlce, attachable to the enthe do i 1 6o gine and eonnected to the tilting arm.16-for -3. A device for adjustingthe hit-and-miss r2 5 the purpose stated, consists of an uxiliary movement of a governor on a gas engine, frame- 22 of suitable form and size to qe fixed. comprising a stationary rack, a dog mountedon thepedestal or engine, conveniently by and mpivable endwise on and along the rack bolts'23, which frame includes anelongated and adapted to engage the rack, arod mountedge provided with serrations or teeth 24; 1 ed and extensible on the dog, and a spring 130 adapted to resist the retreat of the rod on the ment with the rack, a rod slidable endwise in dog. the dog and adapted to be attached to the 4. A11 adjusting device for the governor of governor mechanism, and a spring adapted it gas-engine, consisting of a stationary rack; to hold the rod yieldingly up to its work. 5 a standard pivoted on the rack and rovided In testimony whereof I aflix my signature 15 with a thumb-piece, a dog pivote on the i in presence of two Witnesses.

standard and having-a tooth adapted to en-- THEODORE HOLLNAGEL. gage the rack and a finger-piece eomplemen- Witnesses: tary to the thumbiece'nn the standard, a i C. T. BENEDICT,

[0 spring holding the 0g yieldingly in engage- ANNA F. SCHMIDTBAUER. 

